<?php 

$phonebookUser = Mage::getModel('inchoo_phonebook/user');

$phonebookUser->setFristname('John');
$phonebookUser->setLastname('Doe');
$phonebookUser->setEmail('john.doe@magento.com');
$phonebookUser->setAddress('Sample address line here');
$phonebookUser->setIsActive(true);

$phonebookUser->save();

Zend_Debug::dump($phonebookUser->debug(), '$phonebookUser');

$users = Mage::getModel('inchoo_phonebook/user')->getCollection();

foreach($users as $user) {
    Zend_Debug::dump($user->debug(), '$user');
}